Swift-XRT Survey of Fermi Unassociated Sources

These results are part of the Swift program to follow-up Fermi unassociated sources in an attempt to find X-ray counterparts to the unidentified gamma-ray sources. As new observations are performed, these pages will be updated in nearly real time. Please use these results as a guide and proceed with caution when using them in a publication since they are the result of an automated analysis.

When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 for a description of many of the analysis techniques used to reduce these data (note: a more detailed paper describing the complete data set and analysis is forthcoming). Please contact Abe Falcone and Michael Stroh at unassociated@swift.psu.edu if you have any questions about the program or the analysis, or to simply to let us know that you've made use of these data.
Caution: For completeness, sources are listed if the "detection" exceeds 3 sigma. The significances and images are shown so you can make more stringent significance cuts, if desired.

4FGL J2046.1-1626

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2046.1-1626 Swift-XRT detections in the field for 4FGL J2046.1-1626

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 45 54.73 -16 26 43.15 7.27 (4.3 ± 1.4) x 10-3 13 2.964 3.013

Rejected Excesses (Due to Overlaps or SNR(Sosta) < 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 46 27.05 -16 24 58.37 7.27 (3.2 ± 1.3) x 10-3 13 2.650 2.518
2 20 46 32.33 -16 27 20.77 7.27 (3.1 ± 1.3) x 10-3 10 2.463 2.430
3 20 47 00.46 -16 28 32.67 8.62 (2.1 ± 1.0) x 10-3 6 2.164 2.135
4 20 45 53.51 -16 29 03.12 7.27 (1.9 ± 1.0) x 10-3 12 2.359 1.923
5 20 45 42.93 -16 28 56.98 7.71 (1.7 ± 1.0) x 10-3 7 2.396 1.753

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2046.1-1626 Swift-XRT image with known radio, optical and UV sources for 4FGL J2046.1-1626


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 WISH B2043.2-1638 20 46 06.60 -16 27 03.96 1.33 WISH
2 NVSS J204607-162319 20 46 07.10 -16 23 18.96 3.46 NVSS
WISH B2043.2-1638B 20 46 07.30 -16 23 17.16 3.47 WISH
WISH B2043.2-1638A 20 46 06.10 -16 29 48.12 3.49 WISH
TGSSADR J204606.2-162957 20 46 06.19 -16 29 57.12 3.62 GMRTAS150M
GLEAM J204606-162957 20 46 06.19 -16 29 57.12 3.62 GLEAMEGCAT
3 NVSS J204606-162959 20 46 06.31 -16 29 58.92 3.65 NVSS
4 NVSS J204554-162804 20 45 54.79 -16 28 05.16 4.33 NVSS
5 GLEAM J204554-162912 20 45 54.41 -16 29 12.84 4.93 GLEAMEGCAT
WISH B2043.0-1640 20 45 53.90 -16 29 24.00 5.12 WISH
TGSSADR J204553.8-162956 20 45 53.90 -16 29 56.04 5.44 GMRTAS150M
6 NVSS J204553-162958 20 45 53.71 -16 29 57.84 5.50 NVSS
7 PPM 722209 20 46 25.78 -16 32 32.28 6.84 PPM
8 WISH B2042.8-1637 20 45 39.00 -16 26 44.16 7.87 WISH
GLEAM J204538-162640 20 45 38.59 -16 26 39.84 7.96 GLEAMEGCAT
VLSSr J204650.4-162448 20 46 50.50 -16 24 47.88 9.45 VLSSR
WISH B2044.0-1635 20 46 50.50 -16 24 51.12 9.46 WISH
GLEAM J204650-162439 20 46 50.40 -16 24 38.88 9.47 GLEAMEGCAT
TGSSADR J204650.5-162441 20 46 50.50 -16 24 41.04 9.48 GMRTAS150M
9 NVSS J204650-162442 20 46 50.59 -16 24 42.12 9.50 NVSS
10 PPM 722213 20 46 33.50 -16 16 15.24 11.57 PPM
TGSSADR J204527.3-163128 20 45 27.31 -16 31 28.92 11.72 GMRTAS150M
11 NVSS J204527-163133 20 45 27.41 -16 31 32.88 11.73 NVSS
GLEAM J204527-163135 20 45 27.19 -16 31 36.12 11.81 GLEAMEGCAT
12 WISH B2042.6-1643 20 45 27.70 -16 32 22.92 12.06 WISH
TGSSADR J204651.0-161557 20 46 51.00 -16 15 56.88 14.20 GMRTAS150M
13 NVSS J204651-161557 20 46 51.00 -16 15 56.88 14.21 NVSS
14 WISH B2044.0-1626 20 46 51.00 -16 15 01.08 14.92 WISH

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